1. [syn: spiegeleisen, spiegel, spiegel iron]
The Collaborative International Dictionary of English v.0.48:
Spiegel iron \Spie"gel i`ron\ [G. spiegel mirror + E. iron.]
A fusible white cast iron containing a large amount of carbon
(from three and a half to six per cent) and some manganese.
When the manganese reaches twenty-five per cent and upwards
it has a granular structure, and constitutes the alloy ferro
manganese, largely used in the manufacture of Bessemer steel.
Called also specular pig iron, spiegel, and
WordNet (r) 3.0 (2006):
n 1: pig iron containing manganese; used as a deoxidizing agent
and to raise the manganese content in making steel [syn:
spiegeleisen, spiegel, spiegel iron]